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  • Title: Bundle branch block in alternate beats: the role of supernormal and concealed bundle branch conduction.
    Author: Luzza F, Consolo A, Oreto G.
    Journal: Heart Lung; 1995; 24(4):312-4. PubMed ID: 7591798.
    Abstract:
    This article reports an example of right bundle branch block occurring on alternate beats in the presence of atrial tachycardia with 2:1 atrioventricular conduction. Analysis of the tracing suggests that the alternate disappearance of right bundle branch block is a manifestation of supernormal bundle branch conduction. The phenomenon is assumed to be caused by retrograde concealed conduction within the bundle branch that is blocked in anterograde direction (the "linking" mechanism).
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